Near-Sensor Neuromorphic Computing System Based on a Thermopile Infrared Detector and a Memristor for Encrypted Visual Information Transmission

作者：Zheng Wang, Jinhao Zhang, Zhenyu Zhang, Jialin Meng, Cheng Lei, Tianyu Wang · 发表于：Nano Letters · 年份：2025 · DOI：10.1021/acs.nanolett.5c01843 · 被引用次数：19 · 研究领域：Advanced Memory and Neural Computing、CCD and CMOS Imaging Sensors、Transition Metal Oxide Nanomaterials

Near-sensor neuromorphic computing systems that utilize photodetectors and memristors exhibit significant promise in the domains of visual information processing, transmission, and noise reduction recognition. In comparison to conventional photodetectors operating within the visible-light spectrum, thermopile infrared detectors offer distinct advantages in terms of concealment and security. This study proposes an integrated near-sensor computing system that combines a thermoelectric infrared detector with a memristor, which demonstrates a broad detection range (100-310 °C), rapid response time for sensing infrared signals, and excellent neuromorphic computing characteristics for information processing. Besides high-accuracy recognition of handwritten digits, near-infrared visual information recognition and voice recognition for double information encryption were demonstrated in the system. This neuromorphic computing system holds considerable potential for applications in the propagation, encryption, and recognition of security information within the infrared spectrum.